test/MC/ELF/comdat.s

   1 // RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | llvm-readobj -s -t | FileCheck %s
   2
   3 // Test that we produce the group sections and that they are at the beginning
   4 // of the file.
   5
   6 // CHECK:        Section {
   7 // CHECK:          Index: 1
   8 // CHECK-NEXT:     Name: .group
   9 // CHECK-NEXT:     Type: SHT_GROUP
  10 // CHECK-NEXT:     Flags [
  11 // CHECK-NEXT:     ]
  12 // CHECK-NEXT:     Address: 0x0
  13 // CHECK-NEXT:     Offset: 0x40
  14 // CHECK-NEXT:     Size: 12
  15 // CHECK-NEXT:     Link: 13
  16 // CHECK-NEXT:     Info: 1
  17 // CHECK-NEXT:     AddressAlignment: 4
  18 // CHECK-NEXT:     EntrySize: 4
  19 // CHECK-NEXT:   }
  20 // CHECK-NEXT:   Section {
  21 // CHECK-NEXT:     Index: 2
  22 // CHECK-NEXT:     Name: .group
  23 // CHECK-NEXT:     Type: SHT_GROUP
  24 // CHECK-NEXT:     Flags [
  25 // CHECK-NEXT:     ]
  26 // CHECK-NEXT:     Address: 0x0
  27 // CHECK-NEXT:     Offset: 0x4C
  28 // CHECK-NEXT:     Size: 8
  29 // CHECK-NEXT:     Link: 13
  30 // CHECK-NEXT:     Info: 2
  31 // CHECK-NEXT:     AddressAlignment: 4
  32 // CHECK-NEXT:     EntrySize: 4
  33 // CHECK-NEXT:   }
  34 // CHECK-NEXT:   Section {
  35 // CHECK-NEXT:     Index: 3
  36 // CHECK-NEXT:     Name: .group
  37 // CHECK-NEXT:     Type: SHT_GROUP
  38 // CHECK-NEXT:     Flags [
  39 // CHECK-NEXT:     ]
  40 // CHECK-NEXT:     Address: 0x0
  41 // CHECK-NEXT:     Offset: 0x54
  42 // CHECK-NEXT:     Size: 12
  43 // CHECK-NEXT:     Link: 13
  44 // CHECK-NEXT:     Info: 10
  45 // CHECK-NEXT:     AddressAlignment: 4
  46 // CHECK-NEXT:     EntrySize: 4
  47 // CHECK-NEXT:   }
  48
  49 // Test that g1 and g2 are local, but g3 is an undefined global.
  50
  51 // CHECK:        Symbol {
  52 // CHECK:          Name: g1
  53 // CHECK-NEXT:     Value: 0x0
  54 // CHECK-NEXT:     Size: 0
  55 // CHECK-NEXT:     Binding: Local
  56 // CHECK-NEXT:     Type: None
  57 // CHECK-NEXT:     Other: 0
  58 // CHECK-NEXT:     Section: .foo (0x7)
  59 // CHECK-NEXT:   }
  60 // CHECK-NEXT:   Symbol {
  61 // CHECK-NEXT:     Name: g2
  62 // CHECK-NEXT:     Value: 0x0
  63 // CHECK-NEXT:     Size: 0
  64 // CHECK-NEXT:     Binding: Local
  65 // CHECK-NEXT:     Type: None
  66 // CHECK-NEXT:     Other: 0
  67 // CHECK-NEXT:     Section: .group (0x2)
  68 // CHECK-NEXT:   }
  69
  70 // CHECK:        Symbol {
  71 // CHECK:          Name: g3
  72 // CHECK-NEXT:     Value: 0x0
  73 // CHECK-NEXT:     Size: 0
  74 // CHECK-NEXT:     Binding: Global
  75 // CHECK-NEXT:     Type: None
  76 // CHECK-NEXT:     Other: 0
  77 // CHECK-NEXT:     Section: Undefined (0x0)
  78 // CHECK-NEXT:   }
  79
  80
  81         .section        .foo,"axG",@progbits,g1,comdat
  82 g1:
  83         nop
  84
  85         .section        .bar,"ax?",@progbits
  86         nop
  87
  88         .section        .zed,"axG",@progbits,g2,comdat
  89         nop
  90
  91         .section        .baz,"axG",@progbits,g3,comdat
  92         .long g3